Classification of Airfilters

ASHRAE 52.2-2017

Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size

This standard addresses two air-cleaner performance characteristics of importance to users: the ability of the device to remove particles from the airstream and its resistance to airflow. A method of loading the air cleaner with synthetic dust to simulate field conditions is described. The performance efficiency is calculated and is the basis to determine the minimum efficiency reporting value (MERV).

ISO 16890

The new ISO 16890 standard for filter testing and assessment is likely to replace EN 779 by mid-2018. In future, filter efficiencies will be determined with regard to the particulate classes PM1, PM2,5 and PM10, as well as coarse dust. The ISO 16890 standard is thus based on the same evaluation parameters used by the WHO and other environmental authorities.

EN 779:2012

The EN 779 standard "Particulate air filters for general ventilation" defined the test procedure for coarse and fine dust filters. The EN 779:2012 version valid from April 2012 until mid-2018 included the introduction of minimum efficiency levels for classes F7 to F9, and the renaming of classes F5 and F6 to M5 and M6. By mid-2018, EN 779 will be completely replaced by the ISO 16890 standard in Europe.

EN 1822 and ISO 29463

In Europe, EPA, HEPA and ULPA filters are subject to classification according to EN 1822 for filtration efficiency and zero leakage. HEPA and ULPA filters are also subject to individual tests. The international standard ISO 29463 is based on European standard EN 1822 and will probably replace this standard in the future. Both standards are based on the latest particle counting methods.

Dust class according to DIN EN 60335-2-69 appendix AA

Filter media used in dust removal machines is tested according to the SBM dust class DIN EN 60335-2-69 appendix AA. The maximum degree of penetration decides whether a filter material is classified as an L, M or H class.

Benefit from our specialized expertise in classification of air filters

Select and request detailed information.

Customer information

Closer to reality

The new ISO 16890 enables the best filter solution

Remove from download
Add to download

Customer information

EN 779: 2012 Compact

The new filter classification standard in overview

Remove from download
Add to download

Customer information

EN 1822 and ISO 29463

Test method for EPA / HEPA / ULPA filters

Remove from download
Add to download

To download the selected files please leave us some information.

Just complete all required fields marked with (*). You will get a link to download the documents in a glance.

First name*

Last name*

Company*

Email*

Country*

I have read and accepted the data privacy statement. I agree that my data will be used to process the request and stored to send future information, for example via e-mail newsletters. This agreement can be revoked at any time.*

Comfort Download

Remembering you for future downloads. A further address-entry becomes unnecessary after confirming the link you get via email.

I agree that my information will be saved locally on my computer.

How does it work?

You will immediately receive a link via email after requesting the first download. By clicking on this link, your information will be saved as browser cookie solely on your device making a further data-entry unnecessary. You will be able to delete the cookie in the settings of your browser at any time. The feature can be deactivated by deleting the cookie.